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chapter 3
matter
Term | Definition |
---|---|
matter | matter is anything that has mass or takes up space |
element | elements- ingredents that make up all other subsinsise |
maetal | most elements are metal and they are good conducters of electricity or heat. |
nonmetals | do not conduct heat or electrtcity that easy |
semimetals | sometimes like metals, sometimes not like metal |
atoms | atoms are the smallest of a element that still acts like a element |
atomic theory | states that everything is made of atoms |
compounds | a type of matter made of two or more elements |
molecule | smallest partical of a compound that still acts like a compound |
proton | positive charge. found in the nucleus |
neutron | no charge. found in the nucleus |
electron | negative charge. orbits the nucleus |
solid | has a definite shape and volume. particals are very close together,don't move post each other. |
liquids | definite s |
gas | |
plasmas | |
melting point | |
evaporation | |
condensation |